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Cost is the primary obstacle. A basic economic analysis will show that there is no compelling reason to spend the orders of magnitude more money to install 4 Supercharger stalls compared to 4 40A HPWCs. The nature of a "destination" is that the EV will be present at that location for many hours, so an HPWC works just fine, whereas a Supercharger on a highway somewhere is optimal for rapid charging because the EV owners are on their way somewhere and don't want to have to stop for hours to charge.Other than cost ( always an issue ) are there obstacles to a high-end restaurant, convention hotel, ... From using a supercharger instead of a wall charger?
If you broaden your definition of "destination" to include restaurants, grocery stores, gyms, malls, golf courses and places where we spend 30min - 4hrs, then the usefulness of a DC charger increases dramatically.Cost is the primary obstacle. A basic economic analysis will show that there is no compelling reason to spend the orders of magnitude more money to install 4 Supercharger stalls compared to 4 40A HPWCs. The nature of a "destination" is that the EV will be present at that location for many hours, so an HPWC works just fine, whereas a Supercharger on a highway somewhere is optimal for rapid charging because the EV owners are on their way somewhere and don't want to have to stop for hours to charge.
It's nice that a lot of businesses provide free charging, and we'll enjoy it while we have it, but it's not going to scale up if EV's are going to be 50% of the cars on the road.Totally agree that many "destinations" can benefit from L3 charging. This is basically what we see at Superchargers located near restaurants and grocery stores and such. I made good use of a "destination" CHAdeMO a few weeks ago, when I needed a bunch of extra range to get home from a trip without detouring to a Supercharger, and was staying at a hotel with only 120V charging. An hour or so on that put me right where I needed to be, whereas L2 would have barely made a dent.
The cost is fairly high. CHAdeMO stations are commercial products and you can look up their prices. I'm seeing costs as low as $6,500, but that's only for a 24kW station. It looks like 50kW is more like $16,000, plus presumably expensive installation. Not bad for what you get, but a whole lot more expensive than a $500 wall connector which goes on a standard 240V circuit.
In any case, an SC-lite would be pretty cool for Tesla to provide. Even better, have both Tesla connectors and CHAdeMO (and CCS?) so everybody can benefit.
It's nice that a lot of businesses provide free charging, and we'll enjoy it while we have it, but it's not going to scale up if EV's are going to be 50% of the cars on the road.
The link I posted earlier was for a 10-100kW CHAdeMO charger for only $10K, quantity one. For a national deployment the cost would be much less. It's about time that one of the for profit charging networks (e.g., EVgo, Blink, etc.) put in place a real network of 50-100kW Level 3 chargers with CCS, CHAdeMO and Tesla connectors. Grocery stores, shopping malls, public parking lots, etc. could all have charging stations and it would go a long way towards solving the entire renter/condo owner issue as well as providing "in town" charging when touring. Then Tesla just needs to provide SC's on the long distance routes which was the original idea.
I agree the listing is ambiguous. The photo says 20kW, the copy says 10kW-100kW. I think the take away is that a rectifier and some control electronics need not be horribly expensive. I had a 8kW charger (two rectifiers and a controller) on on my boat for less than $1,000 and not much larger than a shoe box.I'm a little confused about that 10-100kW CHAdeMO charger. Does $10,000 get you 10kW, or 100kW, or what? I'd assume the $10,000 is for 10kW since that would be the cheapest, and then it would go up from there, but I don't see a way to choose the power level. The products on their web site look significantly cheaper than that would imply, too....
Keep going... I don't think any of the Supercharger installations have been below $100,000.Don't forget just how much cost we're talking. An installed wall connector might cost in the range of $1,000 to $4,000 depending on how difficult the installation is. A Supercharger would be more like $50,000.
Keep going... I don't think any of the Supercharger installations have been below $100,000.